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authorKulikov Vasiliy <segooon@gmail.com>2010-07-16 20:16:34 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-07-17 19:45:56 +0100
commit51b6dfb627d785ee92c2bd1e159e2de47cdc29c3 (patch)
treeecf1b55a31e5fa96a404fa2b8383a2f71dd604fb /sound/soc/imx
parent55938b106ff4028f9e8b23b1bcb16d7cd615bee7 (diff)
downloadlinux-51b6dfb627d785ee92c2bd1e159e2de47cdc29c3.tar.gz
ASoC: imx: check kzalloc() result and fix memory leak
If kzalloc() fails we must exit with -ENOMEM. Also we must free
allocated runtime->private_data on error as it would be lost on next
call to snd_imx_open().

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/imx')
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 05f19c9284f4..0a595da4811d 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -292,12 +292,16 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
 	int ret;
 
 	iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
+	if (iprtd == NULL)
+		return -ENOMEM;
 	runtime->private_data = iprtd;
 
 	ret = snd_pcm_hw_constraint_integer(substream->runtime,
 			SNDRV_PCM_HW_PARAM_PERIODS);
-	if (ret < 0)
+	if (ret < 0) {
+		kfree(iprtd);
 		return ret;
+	}
 
 	snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
 	return 0;